227220434712 has 80 divisors (see below), whose sum is σ = 669923832600. Its totient is φ = 71753817600.

The previous prime is 227220434633. The next prime is 227220434713. The reversal of 227220434712 is 217434022722.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (227220434713) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 9215289 + ... + 9239912.

Almost surely, 2^227220434712 is an apocalyptic number.

It is an amenable number.

227220434712 is an abundant number, since it is smaller than the sum of its proper divisors (442703397888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

227220434712 is a wasteful number, since it uses less digits than its factorization.

227220434712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18455238 (or 18455225 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 36.

The spelling of 227220434712 in words is "two hundred twenty-seven billion, two hundred twenty million, four hundred thirty-four thousand, seven hundred twelve".